Relationships between ringed spherulitic morphology and miscibility in blends of poly(ε-caprolactone) with poly(benzyl methacrylate) versus poly(phenyl methacrylate)

Eamor Woo, T. K. Mandal, S. C. Lee

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

Ringed spherulites are an interesting phenomenon that is observed only in very few miscible systems. For the first time, the relationship between the state of chain intermixing and the ring-band pattern was demonstrated. Two previously demonstrated miscible blend systems, poly(ε-caprolactone) (PCL) with poly(benzyl methacrylate) (PBzMA) and PCL with poly(phenyl methacrylate) (PPhMA), were studied in order to understand the mechanism of ring-band formation in the spherulites and the relationships between the ring-band pattern and the state of miscibility. In both miscible PCL/PBzMA and PCL/PPhMA systems, extinction rings were observed within the PCL spherulities. In the PCL/PBzMA blend, the extinction rings are not as distinct (owing to distortion) as those in the PCL/PPhMA blend system. Analysis was performed and discussions were made to reveal relationships between miscibility, interaction strength, and the pattern of the ring bands in the PCL spherulites in polymeric mixtures.

Original languageEnglish
Pages (from-to)1032-1042
Number of pages11
JournalColloid and Polymer Science
Volume278
Issue number11
DOIs
Publication statusPublished - 2000 Nov 27

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Colloid and Surface Chemistry
  • Materials Chemistry

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